Here's a question for you all regarding this situation. Do you/have you/would you become hard of hearing in that situation, and not grant the timeout?
Outside of the sportsmanship issue (which is sorely lacking in these contests) of the coach trying to rub it in, a lot of stupid things happen on these types of plays that could lead to injury, personal fouls etc. Since one of our primary responsibilities as officials is to ensure player safety, should we have just swallowed the whistle, and while saving the coach from himself, also save the players from a potential injury by letting the clock run out?